The George Dollinger Pyper papers (1834-1975) consist primarily of correspondence, scrapbooks, diaries, news clippings, programs, contracts, scripts, broadsides, and scores documenting George Dollinger Pyper's career as manager of the Salt Lake Theatre. Pyper served as manager of the Salt Lake Theatre from 1898 to 1929. He also served as general superintendent of the Deseret Sunday School Union and as a member of the Mormon Tabernacle Choir.